Finding the Fourth Proportional to 13,166.72, 19,752.64 and 3,932.80

Step by Step Solution

1. Step 1: Write the proportion equation
   13,166.72 : 19,752.64 = 3,932.80 : x
2. Step 2: Convert to fraction form
   13,166.72/19,752.64 = 3,932.80/x
3. Step 3: Cross multiply
   13,166.72x = 19,752.64 × 3,932.80
4. Step 4: Simplify right side
   13,166.72x = 77,683,182.59
5. Step 5: Solve for x
   x = 77,683,182.59/13,166.72
6. Step 6: Final answer
   x = 5,899.96